Set:	Modern Horizons 3
Type:	Enchantment
Rarity:	Rare
Cost:	{2}{U}

You may have Estrid's Invocation enter the battlefield as a copy of an enchantment you control, except it has "At the beginning of your upkeep, you may exile this enchantment. If you do, return it to the battlefield under its owner's control." Enchanters add layer upon layer of complexity to the world around them.